HaikuDepot: Classes to interface with the Package Kit

* Non functional
 * Basically allows to retrieve applicable actions for
   a given package.

src/apps/haiku-depot/PackageManager.cpp

@@ -0,0 +1,88 @@
+/*
+ * Copyright 2013, Stephan Aßmus <superstippi@gmx.de>.
+ * All rights reserved. Distributed under the terms of the MIT License.
+ */
+
+#include "PackageManager.h"
+
+#include <stdio.h>
+
+#include <Catalog.h>
+
+
+#undef B_TRANSLATION_CONTEXT
+#define B_TRANSLATION_CONTEXT "PackageManager"
+
+
+// #pragma mark - PackageAction
+
+
+PackageAction::PackageAction(const PackageInfo& package)
+	:
+	fPackage(package)
+{
+}
+
+
+PackageAction::~PackageAction()
+{
+}
+
+
+// #pragma mark - InstallPackageAction
+
+
+class InstallPackageAction : public PackageAction {
+public:
+	InstallPackageAction(const PackageInfo& package)
+		:
+		PackageAction(package)
+	{
+	}
+
+	virtual const char* Label() const
+	{
+		return B_TRANSLATE("Install");
+	}
+	
+	virtual status_t Perform()
+	{
+		// TODO: Trigger asynchronous installation of the package
+		return B_ERROR;
+	}
+};
+
+
+// #pragma mark - PackageManager
+
+
+PackageManager::PackageManager()
+{
+}
+
+
+PackageManager::~PackageManager()
+{
+}
+
+
+PackageActionList
+PackageManager::GetPackageActions(const PackageInfo& package)
+{
+	PackageActionList actionList;
+
+	// TODO: Actually fetch applicable actions for this package.
+	// If the package is installed and active, it can be
+	//		* uninstalled
+	//		* deactivated
+	// If the package is installed and inactive, it can be
+	//		* uninstalled
+	//		* activated
+	// If the package is not installed, it can be
+	//		* installed (and it will be automatically activated)
+	actionList.Add(PackageActionRef(new InstallPackageAction(package), true));
+
+	return actionList;
+}
+
+

src/apps/haiku-depot/PackageManager.h

@@ -0,0 +1,45 @@
+/*
+ * Copyright 2013, Stephan Aßmus <superstippi@gmx.de>.
+ * All rights reserved. Distributed under the terms of the MIT License.
+ */
+#ifndef PACKAGE_MANAGER_H
+#define PACKAGE_MANAGER_H
+
+
+#include <Referenceable.h>
+
+#include "List.h"
+#include "PackageInfo.h"
+
+
+class PackageAction : public BReferenceable {
+public:
+								PackageAction(const PackageInfo& package);
+	virtual						~PackageAction();
+
+	virtual const char*			Label() const = 0;
+	
+	// TODO: Perform() needs to be passed a progress listener
+	// and it needs a mechanism to report and react to errors. The
+	// Package Kit supports this stuff already.
+	virtual status_t			Perform() = 0;
+
+protected:
+			PackageInfo			fPackage;
+};
+
+
+typedef BReference<PackageAction> PackageActionRef;
+typedef List<PackageActionRef, false> PackageActionList;
+
+
+class PackageManager {
+public:
+								PackageManager();
+	virtual						~PackageManager();
+
+	virtual	PackageActionList	GetPackageActions(const PackageInfo& package);
+};
+
+
+#endif // PACKAGE_MANAGER_H